The organisms A and B occur on the forest floor. They convert the dead parts of forest plants and dead parts of forest plants and dead bodies of forest animal into simple susbtances such as C,D and E which can be re-used by organisms F for their growth and development.
What could be organisms F be?

Answer

To solve the question, we need to identify the organisms A and B, as well as organism F, based on the information provided.

### Step-by-Step Solution:

1. **Identify Organisms A and B:**
- Organisms A and B are described as converting dead parts of forest plants and dead bodies of forest animals into simple substances. This process is characteristic of decomposers.
- Decomposers are organisms such as bacteria and fungi that break down dead organic matter.

2. **Understand the Role of Decomposers:**
- The decomposers (A and B) break down the complex organic materials from dead plants and animals into simpler substances. These substances can include nutrients and minerals.

3. **Identify the Simple Substances:**
- The simple substances produced by the decomposers can be referred to as C, D, and E. These are typically nutrients like nitrogen, phosphorus, and potassium, which are essential for plant growth.

4. **Identify Organism F:**
- The question states that the simple substances produced by A and B can be reused by organism F for their growth and development.
- Since the nutrients released by decomposers are absorbed by plants, organism F can be identified as plants.

5. **Conclusion:**
- Therefore, organism F, which utilizes the simple substances produced by decomposers, is **plants**.

### Final Answer:
Organism F could be **plants**.

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